-4(b+4)+5(2b-4)=5b-8b

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Solution for -4(b+4)+5(2b-4)=5b-8b equation:


Simplifying
-4(b + 4) + 5(2b + -4) = 5b + -8b

Reorder the terms:
-4(4 + b) + 5(2b + -4) = 5b + -8b
(4 * -4 + b * -4) + 5(2b + -4) = 5b + -8b
(-16 + -4b) + 5(2b + -4) = 5b + -8b

Reorder the terms:
-16 + -4b + 5(-4 + 2b) = 5b + -8b
-16 + -4b + (-4 * 5 + 2b * 5) = 5b + -8b
-16 + -4b + (-20 + 10b) = 5b + -8b

Reorder the terms:
-16 + -20 + -4b + 10b = 5b + -8b

Combine like terms: -16 + -20 = -36
-36 + -4b + 10b = 5b + -8b

Combine like terms: -4b + 10b = 6b
-36 + 6b = 5b + -8b

Combine like terms: 5b + -8b = -3b
-36 + 6b = -3b

Solving
-36 + 6b = -3b

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '3b' to each side of the equation.
-36 + 6b + 3b = -3b + 3b

Combine like terms: 6b + 3b = 9b
-36 + 9b = -3b + 3b

Combine like terms: -3b + 3b = 0
-36 + 9b = 0

Add '36' to each side of the equation.
-36 + 36 + 9b = 0 + 36

Combine like terms: -36 + 36 = 0
0 + 9b = 0 + 36
9b = 0 + 36

Combine like terms: 0 + 36 = 36
9b = 36

Divide each side by '9'.
b = 4

Simplifying
b = 4

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